Vacuum Infusion

Vacuum infusion, also called resin infusion, is a fabrication technique that uses vacuum pressure to drive resin into a laminate. Dry materials are laid into the mold and the vacuum pressure is applied before resin is introduced. Once a complete vacuum is achieved, resin is forced into the laminate via vacuum tubing. The vacuum infusion process offers a better fiber-to-resin ratio than hand lay-up or vacuum bagging.

Vacuum infusion, or resin infusion, has a unique set-up within the vacuum bag. As noted, layers of fabric are secured without the presence of resin. Once infusion begins, resin enters the laminate at a given point and requires flow media to deliver it across the surface of the laminate.

Flow media is placed either between the reinforcement and the bag, or in between layers of reinforcement. In fact, in some cases, flow media becomes part of your laminate. At FibreGlast.com, we carry flow media in a variety of formats: